Tbh, I'm still kind of perplexed that people act as if there's no story going into this film. I really just don't get that.
I mean on a very basic level, you have Rey and Kylo. It's a complex relationship, and you naturally want to see how that evolves and resolves. You want to see how Rey will be able to handle the pressure of being the heir to the Jedi and the one that everybody is counting on for the Rebellion, after spending a lot of time trying to get Luke/Kylo to play that role for her. On the flip side, you want to see how Kylo will handle being Supreme Leader, and whether or not redemption is still in the cards for him. This trilogy is largely about the struggle of a new generation to live up to the previous one, so it is strongest exemplified with the two of them.
And that's just the basic, core element of it. That's without touching stuff like Palpatine's return, Rey's true origins being explored (including why she's eerily strong in The Force), Finn and Poe, their relationship with the Resistance, each other and Rey, how Leia and Luke will fit into the final part of Rey's journey to becoming a Jedi, etc. I mean I genuinely don't get it. To me, I look at everything on the table and I see the ingredients for something pretty terrific. Like I get that TLJ didn't end on a specific cliffhanger ala Empire, but there's still clearly a big story left to be told to wrap up the saga.